CN111533997B - Low-VOC (volatile organic compound) antistatic polypropylene material as well as preparation method and application thereof - Google Patents
Low-VOC (volatile organic compound) antistatic polypropylene material as well as preparation method and application thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/006—Additives being defined by their surface area
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/017—Additives being an antistatic agent
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention relates to the technical field of high polymer materials, and discloses a low-VOC (volatile organic compound) antistatic polypropylene material, and a preparation method and application thereof, wherein the material comprises the following raw material components in percentage by weight of 100 percent: 60-90% of polypropylene; 5-20% of an inorganic filler; 2-10% of carbon aerogel; 1-5% of epoxy resin; 1-5% of a compatilizer; 0.1-2% of composite photo-thermal stabilizer; 0.1-2% of a coloring agent; 0.1-2% of lubricant, and is prepared by melt blending, wherein the carbon aerogel is applied to plastics, and the polypropylene composite material with excellent mechanical property, VOC emission performance and antistatic performance is obtained by reasonably proportioning the carbon aerogel, the epoxy resin and the compatilizer according to the characteristics of the carbon aerogel, and can be applied to the parts of the interior and exterior trim of the automobile, and is excellent in touch feeling and long-acting dustproof.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a low-VOC antistatic polypropylene material and a preparation method and application thereof.
Background
Polypropylene is a general thermoplastic with excellent comprehensive performance, has the characteristics of low price, light weight, solvent resistance, easy recovery, no toxicity and the like, is the most important light material for automobiles, can reduce the mass of automobile parts by about 40 percent, and is widely applied to automobile interior parts, such as instrument panels, door panels, upright posts, bumpers and the like.
In the prior art, polypropylene materials which are generally sold in the market have unpleasant smell after being heated and even emit unpleasant smell at normal temperature, and contain some additives which can seep or gasify to influence the health of users, in particular black polypropylene modified materials. Because the number of black parts used for the internal and external parts of the automobile is large, a certain amount of carbon black or black master is usually added for coloring when the polypropylene is modified, so that the modified material has heavy smell, high VOC (volatile organic compounds) and obviously reduced mechanical properties. In addition, because polypropylene is a nonpolar material, air pollution exists in a large range in China for a long time, and harmful substances such as dust in the air are often adsorbed on the surfaces of polypropylene plastic parts inside and outside buildings, daily necessities, kitchen supplies and automobiles, so that bad appearance and potential safety hazards are brought.
CN102372873A discloses a low-odor, low-VOC and high-performance polypropylene composite material for automotive interiors, which comprises 50-90% of polypropylene, 0-40% of inorganic filler, 5-15% of toughening agent, 5-10% of compatilizer, 0.5-5% of odor adsorption master batch, 0.1-1.0% of antioxidant and 1.0-2.5% of color master batch, wherein low-odor resin raw materials and additives are preferred, a multi-component effective odor removal system is provided, and nano active zeolite which is a component in aluminosilicate odor adsorption master batch, low-odor maleic anhydride grafted polypropylene compatilizer and filler synergistically removes material odor and reduces organic matter emission. The invention has the characteristics of excellent smell, good surface property, excellent mechanical property, low cost and the like.
The application can inhibit volatilization of VOC to a certain extent, but the added adsorbing materials such as nano active zeolite increase production cost, and the volatilization of VOC can not be effectively avoided after the polypropylene product produced by the polypropylene composite material is used for a long time or in a high-temperature environment.
CN108485075A discloses a special modified polypropylene for low VOC automotive interior parts, which comprises the following components: the polypropylene modified material comprises polypropylene, talcum powder, glass beads, a release agent, an antioxidant, a lubricant, a light stabilizer and a low-molecular organic matter repellent, wherein the glass beads are used as a gas adsorbent, the function of adsorbing fine-molecular organic matters is achieved by controlling partial breakage of the glass beads, the specific surface area of the glass beads is small, the amount of adsorbed low molecules is small even if the glass beads are completely broken, in addition, the impact property and the rigidity of the polypropylene modified material can be reduced by adding the glass beads, and the common automotive interior part material also needs excellent mechanical properties.
Similarly, the automobile interior materials also face the requirements of dust prevention and good antistatic performance, and antistatic performance of low-VOC polypropylene composite materials is generally given in the prior art by adding an antistatic agent auxiliary agent, but the raw material cost is increased, and other performances of the materials are possibly reduced due to the addition of the antistatic agent.
Disclosure of Invention
The invention aims to provide a polypropylene composite material which does not need to be added with an antistatic agent, has excellent antistatic performance and low VOC (volatile organic compounds), and the polypropylene material with excellent comprehensive performance is obtained by using carbon aerogel as a gas adsorption material and matching with auxiliaries such as epoxy resin, a compatilizer and the like.
In order to achieve the purpose, the invention adopts the technical scheme that:
the low-VOC antistatic polypropylene material comprises the following raw material components in percentage by weight of 100 percent:
the carbon aerogel is applied to plastics for the first time, has the characteristics of ultralow density, multiple pore volumes and large specific surface area by utilizing the three-dimensional network structure of the carbon aerogel, is added into a polypropylene composite material, adsorbs micromolecular decomposers, reduces VOC of the material, and obtains the polypropylene material which is in a composite automobile interior and exterior decoration standard. Meanwhile, when the inventor tries to apply the carbon aerogel in the polypropylene material, the inventor has surprisingly found that the carbon aerogel can simultaneously play a role of an antistatic agent in the polypropylene material, and particularly, after the carbon aerogel is reasonably mixed with the epoxy resin and the compatilizer, the polypropylene composite material with low VOC emission and effective antistatic performance can be obtained.
The mass ratio of the carbon aerogel to the epoxy resin is 3-10: 1, and the mass ratio of the carbon aerogel to the compatilizer is 5-10: 1-3. Under the condition of the proportion, the comprehensive performance of the obtained material is optimal.
The melt flow rate of the polypropylene is 1-100 g/10min, and the polypropylene is selected from copolymerization polypropylene and/or homopolymerization polypropylene. Preferably, the polypropylene may be selected from one or more of PP3204, PP 3015 and PP 1120 produced by Taitinonica, PP K9820 and K9829 produced by Yanshan petrochemical, BX3920 and BH3500 produced by SK in Korea, EA5076 and EA5075 produced by Basel, and other brands of commercial products.
The inorganic filler can be common inorganic fillers such as talcum powder, montmorillonite, calcium carbonate and the like, can effectively reduce the cost and has the functions of rigidity adjustment and size stability adjustment.
Preferably, the inorganic filler is talcum powder with the particle size of 10-50 mu m, wherein SiO is 2 The weight percentage content is 60-99%. Further preferably, the talcum powder is selected from one or more than two of 1250 meshes, 3000 meshes, 5000 meshes and 10000 meshes. Domestic manufacturers can be selected as follows: guilin Tiancheng, Jiangsu Lida, Xiamen Xinwang, Liaoning Haicheng and so on.
The carbon aerogel is prepared by using resorcinol and formaldehyde as raw materials and sodium carbonate as a catalyst through a sol-gel method; specifically, the carbon aerogel is obtained by aging, acidifying, solvent replacing, semi-closed drying and finally high-temperature carbonizing the raw materials and the catalyst.
The porosity of the carbon aerogel is 80-98%, and the specific surface area of the carbon aerogel is 500-1100 m 2 g -1 The density is 0.05 to 0.80g/cm 3 The average pore diameter is 4-10 nm.
Preferably, the carbon aerogel has a specific surface area of 1000m 2 g -1 。
The carbon aerogel has a pearl string type disordered porous network structure, has a high specific surface area, high conductivity, low density and continuous network structure, has small pore size and is communicated with the outside, has excellent hydrogen absorption and desorption performances, and has unique performances in the aspects of light, electricity, magnetism and the like. The carbon aerogel is used in the polypropylene composite material for the first time, and the key is to ensure good antistatic property and low VOC performance of the material for automobile materials. During the blending process, the micromolecular decomposers in the polypropylene composite material are continuously absorbed and adsorbed, and the pores of the carbon aerogel can adsorb residual unreacted VOC or odor substances.
The epoxy value of the epoxy resin is 1.68-1.75 Eq/Kg, the epoxy resin is used as thermosetting resin, the epoxy resin is blended through a double-screw extruder after being dispersed, and is dispersed into micron-sized particles under the action of high shearing force, the micron-sized particles are uniformly distributed in a polypropylene matrix, and the rigidity and the elastic modulus of the polypropylene can be improved by self-crosslinking in the melting process.
The compatibilizer includes a maleic anhydride grafted polyolefin elastomer and/or a maleic anhydride grafted polypropylene. High performance compatibilizers with higher grafting efficiency, lower odor are preferred. The polypropylene can be endowed with polarity and adhesiveness through the action of maleic anhydride groups, and the interfacial binding force of the polypropylene and talcum powder, carbon aerogel, epoxy resin and the like can be greatly improved by adding a small amount of compatilizer, so that the mechanical properties of the material, such as tensile strength, bending strength, impact strength and the like, are obviously improved.
The composite photo-thermal stabilizer is a mixture of an antioxidant and a light stabilizer. The antioxidant is any one or more of hindered phenol antioxidant, phosphite antioxidant and thioester antioxidant; the light stabilizer is a hindered amine light stabilizer. The composite light-heat stabilizer is necessary because the polypropylene has poor weather resistance and is easy to degrade, and can prevent the degradation of the PP material in the production process, improve the heat resistance, light resistance and color change of the polypropylene and effectively meet the weather resistance requirement of automobile exterior trimming parts on the material.
Preferably, the composite optothermal stabilizer is a mixture of an antioxidant 1010, an antioxidant 168, a photostabilizer 770 and a photostabilizer 994.
The lubricant comprises one or more of low molecular weight polypropylene wax, fatty acid, fatty amide, fatty acid metal salt. The addition of a small amount of lubricant improves the flowability of the material and neutralizes the residual acidic species from the compatibilizer.
The coloring agent is black master batch or carbon black, the addition of the coloring agent can cause the polypropylene composite material to have heavier smell, higher VOC and obviously reduced mechanical property, the carbon aerogel has more excellent gas adsorption capacity and can be suitable for the black polypropylene material, the low-emission and antistatic polypropylene material can be obtained by optimizing the polypropylene matrix resin variety and the auxiliary agent variety and reasonably proportioning the polypropylene matrix resin variety and the auxiliary agent variety, and the obtained composite material has wide market prospect and application value in automobile black products.
The invention also provides a preparation method of the low-VOC antistatic polypropylene material, which comprises the following steps:
(1) uniformly mixing polypropylene, a compatilizer, epoxy resin, a composite photo-thermal stabilizer, partial talcum powder and a colorant to obtain a mixed material A; uniformly mixing part of the talcum powder, the carbon aerogel and the lubricant to obtain a mixed material B;
(2) and adding the mixed material A from a main feeding port and the mixed material B from a side feeding port by using a double-screw extruder, and carrying out melt mixing, extrusion and granulation to obtain the low-VOC antistatic polypropylene material.
As the carbon aerogel is a porous material and collapses under a strong shearing section of the extruder, the network structure becomes thick, so that the electric conductivity and the gas adsorption force are reduced, and the antistatic property and the VOC release amount of the composite material are influenced, the carbon aerogel is added into the extruder from a side feeding system.
The rotating speed of the double-screw extruder is 200-900 revolutions per minute.
The temperature of each section of screw of the double-screw extruder is 190-220 ℃, and the temperature of each section of screw can be the same or different.
Double vacuum suction is adopted in the granulation process, the vacuum pressure is kept at 0.08MPA, the granulated product particles are subjected to ventilation circulation for 4 hours in a hot blast oven, and the volatile matters with small molecules generated in the material preparation process are removed by utilizing high vacuum and high hot air circulation volatilization, so that the emission performance of the final compound in application is improved.
The twin-screw extruder may be replaced by other blending equipment commonly used in the art, such as single screw extruders, mixers, and the like.
The low-VOC antistatic polypropylene material is applied to the parts of the interior and exterior trim of the automobile. The low-VOC antistatic polypropylene material obtained by the invention has excellent mechanical properties, TVOC with emission performance of less than or equal to 50 mu gC/g, and surface resistance of less than or equal to 1 multiplied by 10 on the antistatic performance 13 The automobile interior and exterior trim material has the advantages of good touch, long-term dust prevention and good weather resistance, and completely meets the requirements of the interior and exterior trim parts of the automobile on the material.
Compared with the prior art, the invention has the following beneficial effects:
(1) the polypropylene material for the automobile, which has the advantages of low emission, excellent mechanical property and permanent antistatic property and different dustproof effect requirements, is obtained by selecting the polypropylene resin with good low temperature resistance and good high temperature resistance, further carrying out rigidity adjustment and size stability adjustment by filling the inorganic filler, and adding the auxiliaries such as carbon aerogel, an epoxy resin compatilizer, a stabilizer, a lubricant and the like, and improving the blending formula.
(2) The invention applies the carbon aerogel to the field of plastic processing for the first time, so that the carbon aerogel can be used as a gas absorbent and an antistatic agent, and particularly, by adjusting the proportion of the carbon aerogel to the epoxy resin and the compatilizer, the polypropylene composite material with excellent mechanical property, VOC emission performance and antistatic property can be obtained, and the polypropylene composite material has excellent touch feeling and long-term dust prevention.
(3) Compared with similar products, the polypropylene material has low production cost and low price, can be subjected to secondary forming with a polypropylene matrix, has better economic benefit and environmental protection benefit, can be widely applied to the fields of automobiles, buildings, household appliances and the like, and has wide market prospect and high application value.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Those skilled in the art should understand that they can make modifications and equivalents without departing from the spirit and scope of the present invention, and all such modifications and equivalents are intended to be included within the scope of the present invention.
The raw materials used in the specific embodiment are all commercially available, and the specific sources are shown in the following table 1:
TABLE 1 sources of raw materials
The material has the following performance test methods:
density: ISO 1183; tensile strength: ISO 527; flexural modulus: ISO 178; notched impact strength: ISO 179; melt flow rate: ISO 1133, temperature 230 ℃, load 2.16 KG; thermal aging property: placing the material in a 150-DEG C oven, and observing the thermal aging condition of the material; organic matter emission (TVOC): according to PV 3341 emission measurement of organic compounds of non-metallic materials of automotive interiors; antistatic performance: measured according to TSM5608G Toyota antistatic test.
Preparation of carbon aerogelThe preparation process comprises the following steps: mixing resorcinol and formaldehyde at a molar ratio of 1: 2, adding distilled water as solvent, using a certain amount of sodium carbonate as catalyst, stirring to mix them uniformly, transferring the mixed solution into a sealed glass container, and placing into a constant temperature box (55 ℃ +/-3 ℃). After 4 days of reaction (i.e. sol-gel process), a red transparent organogel was finally formed (no flow after tilting the container). Cutting the gel into columns, putting the columns into acetone, performing solvent exchange for 6 days, continuously replacing the acetone solvent, and then putting the columns into the air for drying for 3 days to obtain the aerogel. Heating the dried aerogel to 800 ℃ under the protection of inert gas and maintaining for 3 hours to ensure that the aerogel is carbonized uniformly, thus obtaining black carbon aerogel, wherein the specific surface area of the carbon gel is 1000m 2 g -1 The average pore diameter was 8 nm.
Examples 1 to 5 and comparative examples 1 to 3
Polypropylene, epoxy resin, talcum powder, a compatilizer, a lubricant and a composite photo-thermal stabilizer (a compound of an antioxidant 1010, an antioxidant 168, a light stabilizer 770 and a light stabilizer 944) are added with a colorant according to the formula in the table 2, and are mixed with a high-speed mixer for 2min at a high speed, then the mixture is added into a double-screw extruder from a main feeding feeder, and carbon aerogel and the talcum powder accounting for 10 percent of the total mass of the talcum powder are mixed for 3min at a high speed, and then the mixture is added into the double-screw extruder from a side feeding feeder; the temperature of the double-screw extruder from the feeding section to the head is as follows in sequence: the black automobile polypropylene material with low VOC and antistatic property is prepared by the steps of 190 ℃, 220 ℃ of die head temperature, double vacuum extraction, head extrusion, strip drawing, air cooling, grain cutting, hot blast circulation for 4 hours, drying and packaging.
TABLE 2 component formulations of examples 1-5 and comparative examples 1-3
| Component unit KG | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| K9820 | 69.8 | 67.8 | 62.8 | 66.8 | 65.8 | 72.8 | 71.8 | 67.8 |
| BX3920 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Talcum powder | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Carbon aerogels | 3 | 5 | 10 | 5 | 5 | - | - | - |
| Antistatic agent | - | - | - | - | - | - | 1 | - |
| Conductive carbon black | - | - | - | - | - | - | - | 5 |
| Epoxy resin 7072 | - | - | - | - | 1 | - | - | - |
| Compatilizer 9801 | - | - | - | 1 | 1 | - | - | - |
| Calcium stearate | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Irganox 1010 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Irganox 168 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Tinuvin 770 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Chimassorb 944 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Cabot black masterbatch 2718 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
The polypropylene modifier without any antistatic agent was used as comparative example 1; as comparative example 2, the non-permanent antistatic agent AS105 specific to automobile parts was modified, and AS comparative example 3, conductive carbon black was modified AS a permanent antistatic agent. The pellets of examples 1 to 5 and comparative examples 1 to 3 were prepared into test specimens by an injection molding machine. The results of the performance tests are shown in Table 3.
The results of the tests in examples 1 to 5 show that, after the carbon aerogel is added in examples 1 to 3, the antistatic performance of the material is gradually improved, the TVOC is gradually reduced, the rigidity is also improved to a certain extent, and the density is reduced, so that the addition of the carbon aerogel improves the antistatic performance of the material to a certain extent, reduces the TVOC, and has a certain enhancing effect on the mechanical properties of the polypropylene material.
After the compatilizer is added in the embodiment 4, the rigidity of the material is improved, the TVOC still meets the standard requirements, and the polar epoxy resin is added in the embodiment 5, so that the surface resistivity of the polypropylene after the epoxy resin is added is obviously improved, the TVOC is reduced, the carbon aerogel and the epoxy resin have stronger affinity, the carbon aerogel can be more effectively dispersed in the polypropylene resin, the bonding force of a two-phase interface is enhanced, and the performances of the material in all aspects are improved.
The carbon aerogel added in the invention not only maintains the mechanical property of the material, but also maintains better TVOC performance and permanent antistatic performance without obviously improving the density. The TVOC performance is better while the mechanical property of the material is further improved after the epoxy resin is matched.
TABLE 3 Polypropylene materials Property Table
Claims (10)
1. The low-VOC antistatic polypropylene material comprises the following raw material components in percentage by weight of 100 percent:
the TVOC of the low-VOC antistatic polypropylene material is less than or equal to 50 mu gC/g.
2. The low-VOC antistatic polypropylene material as claimed in claim 1, wherein the mass ratio of the carbon aerogel to the epoxy resin is 3-10: 1; the mass ratio of the carbon aerogel to the compatilizer is 5-10: 1-3.
3. The low VOC, antistatic polypropylene material of claim 1, wherein the melt flow rate of the polypropylene is 1-100 g/10min, and is selected from a co-polypropylene and/or a homo-polypropylene.
4. The low-VOC antistatic polypropylene material as claimed in claim 1, wherein the inorganic filler is talc powder, and the particle size is 10-50 μm, wherein SiO is 2 The weight percentage content is 60-99%.
5. The low-VOC antistatic polypropylene material as claimed in claim 1, wherein the carbon aerogel is prepared from resorcinol and formaldehyde, the porosity is 80-98%, and the specific surface area is 500-1100 m 2 g -1 The density is 0.05 to 0.80g/cm 3 The average pore diameter is 4-10 nm.
6. The low-VOC antistatic polypropylene material as claimed in claim 1, wherein the epoxy value of the epoxy resin is 1.68-1.75 Eq/Kg.
7. The low VOC, antistatic polypropylene material of claim 1 wherein the compatibilizer comprises a maleic anhydride grafted polyolefin elastomer and/or a maleic anhydride grafted polypropylene.
8. The low VOC, antistatic polypropylene material of claim 1, wherein the composite optothermal stabilizer is a mixture of an antioxidant and a photostabilizer.
9. The preparation method of the low VOC antistatic polypropylene material according to any one of claims 1 to 8, comprising the following steps:
(1) uniformly mixing polypropylene, a compatilizer, epoxy resin, a composite photo-thermal stabilizer, partial talcum powder and a colorant to obtain a mixed material A; uniformly mixing part of the talcum powder, the carbon aerogel and the lubricant to obtain a mixed material B;
(2) and adding the mixed material A from a main feeding port and the mixed material B from a side feeding port by using a double-screw extruder, and carrying out melt mixing and extrusion granulation at 160-250 ℃ to obtain the low-VOC antistatic polypropylene material.
10. Use of the low VOC, antistatic polypropylene material according to any one of claims 1 to 8 in an article of automotive interior or exterior trim.
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| CN112321948B (en) * | 2020-11-25 | 2022-12-02 | 江苏金发科技新材料有限公司 | Silica aerogel-polypropylene light heat-insulating material and preparation method thereof |
| CN112500638A (en) * | 2020-11-30 | 2021-03-16 | 江苏金发科技新材料有限公司 | Low-odor good-appearance environment-friendly polypropylene material and preparation method thereof |
| CN112852057A (en) * | 2021-01-19 | 2021-05-28 | 安特普工程塑料（苏州）有限公司 | Anti-aging improved polypropylene composition and preparation method thereof |
| CN114941207A (en) * | 2022-06-28 | 2022-08-26 | 深圳市一众自动化技术有限公司 | Carbon aerogel melt-blown fabric and preparation method thereof |
| CN116023737A (en) * | 2022-09-15 | 2023-04-28 | 浙江普利特新材料有限公司 | Light high-performance sound-insulation low-emission polypropylene composite material with special appearance and preparation method thereof |
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| KR101854673B1 (en) * | 2015-10-01 | 2018-05-04 | 한국과학기술연구원 | Heat insulation composites having aerogel with preserving aerogel pores using volatile solvent and method for preparing the same |
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